EP1152639B1 - Unité de chauffage électrique, particulièrement destiné à des milieux liquides - Google Patents

Unité de chauffage électrique, particulièrement destiné à des milieux liquides Download PDF

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Publication number
EP1152639B1
EP1152639B1 EP01110424A EP01110424A EP1152639B1 EP 1152639 B1 EP1152639 B1 EP 1152639B1 EP 01110424 A EP01110424 A EP 01110424A EP 01110424 A EP01110424 A EP 01110424A EP 1152639 B1 EP1152639 B1 EP 1152639B1
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EP
European Patent Office
Prior art keywords
heating
temperature sensor
contacts
support
heating unit
Prior art date
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Expired - Lifetime
Application number
EP01110424A
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German (de)
English (en)
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EP1152639A2 (fr
EP1152639B2 (fr
EP1152639A3 (fr
Inventor
Volker Block
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EGO Elektro Geratebau GmbH
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EGO Elektro Geratebau GmbH
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Application filed by EGO Elektro Geratebau GmbH filed Critical EGO Elektro Geratebau GmbH
Publication of EP1152639A2 publication Critical patent/EP1152639A2/fr
Publication of EP1152639A3 publication Critical patent/EP1152639A3/fr
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/78—Heating arrangements specially adapted for immersion heating
    • H05B3/82—Fixedly-mounted immersion heaters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/013—Heaters using resistive films or coatings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017—Manufacturing methods or apparatus for heaters

Definitions

  • the invention relates to an electric heating unit, in particular for liquid media.
  • Meßwiderstandsbahn provided sensor contacts are in a central, unheated zone of the carrier in the immediate vicinity of a fastening bolt arranged, the mechanical attachment of the Heating element is used in a cooktop.
  • the temperature sensor required electrical lines, for example in the form of ceramic tubes. Also with this electric heating unit are electrical connection and mounting relative complicated.
  • DE 196 48 199 A discloses a glass ceramic hob, on its underside flat electrical conductor tracks are provided, which for temperature determination as well as to a capacity measurement.
  • the invention is based on the object, in particular for heating liquid media intended to provide electrical heating unit which is electrically connected with minimal effort.
  • the invention proposes an electric heating unit with the features of claim 1 before.
  • Advantageous developments are indicated in the dependent claims. The wording all claims are incorporated herein by reference made.
  • An electric heating unit therefore has a carrier, at least one in order to form at least one heating zone Flat conductor technology, especially in Thick film technology, applied electrical heating resistor is firmly attached.
  • Farther at least one temperature sensor associated with the heating zone is firmly attached to the carrier, which is designed to emit electrical temperature signals, so that the signals of the Temperature sensor can be evaluated electronically.
  • the vehicle is for electrical Connection of the heating resistor to the heating conductor contacts and to the electrical connection of the Temperature sensor associated with sensor contacts and the Schuleitertivee and Sensor contacts are spatially so closely summarized in a terminal area that they can be contacted by a single, common connection device.
  • the suitable attached to the heating unit adapted to connect both the electrical To connect power supply for the heating conductor or, as well as a signal-conducting Connection from the temperature sensor to an evaluation device for the temperature signal to accomplish.
  • the preferably in the edge region of the carrier in a heating resistance Zone lying terminal region advantageously has a lateral extent of at most only a few centimeters, for example less than 5 cm or 4 cm, so that all carrier-fixed contacts together and possibly in one operation manually or by machine by means of a suitable, manually or mechanically well manipulated connection device are contactable. This is the complete electrical connection of the heating unit over a single, common group connection contact possible, whereby the effort in the contacting of the heating unit is minimal.
  • the at least one temperature sensor is also in flat conductor technology, especially in thick film technology, mounted on the support, creating a special flat design is feasible. It may be in particular a measuring resistor act, ie a heat-sensitive conductor with strong negative (NTC) or strong positive (PTC) temperature coefficient of electrical resistance.
  • NTC negative
  • PTC positive
  • the carrier is preferably for direct contact with the medium to be heated trained and has accordingly one or more heating surfaces, with which he in contact surface contact with the medium to be heated can occur. He can do any take appropriate form and, for example, by a ceramic plate or disk be formed on the electrically non-conductive material of the heating resistor and the Temperature sensor can be applied directly.
  • the enables in a cost effective manner the production of different shaped carrier has the carrier is a preferably plate-shaped, metallic carrier core, for example Stainless steel, on, is applied to the at least one insulating layer, which is the heating resistor and possibly the temperature sensor carries.
  • the insulating layer can in particular in Dick Anlagenscope be applied, for example by screen printing. Your thickness can be in Range of e.g.
  • the outer surface of the carrier core facing away from the heating resistor can partially or completely with an example applied in the thick-film process Be provided coating to electrically isolate the carrier and / or against corrosion protected by the medium to be heated.
  • connection area ie in the immediate spatial proximity to the heat conductor contacts and the sensor contacts, at least one Grounding contact is provided for grounding of the heater.
  • This can be in addition to the Mains supply and the sensor connection also the connection for the grounding of the heating unit be performed via a common connection device.
  • this in Connection area at least one recess or interruption to the electrical Contacting the carrier core or for connecting a grounding contact to the Carrier core has.
  • the carrier core directly If necessary, this area can also be used for secure attachment of a separate Connection device on the carrier e.g. be used by welding.
  • the flat heat conductor contacts and sensor contacts permanently attached to the carrier and, if applicable, the at least one grounding contact can thereby when connecting the heating element be contacted that directly to the contact surfaces wires, contact elements o. soldered, welded or otherwise electrically conductive fixed to the contact surfaces get connected. It is also possible to provide a clip-on connection device, which is designed so that it adheres to the carrier after plugging and that their For example, contact resilient contact elements with the carrier-fixed contact surfaces.
  • plug contact device is provided with plug contacts, with the Heat conductor contacts, the sensor contacts and possibly with the ground contacts electrically are conductively connected.
  • Such a group plug contact device is useful formed by a single, separately producible by the carrier, the after Completion of the provided with its electrically active components carrier to this is firmly attached and as a component of a detachable electrical connector serves, which is a particularly convenient electrical connection, especially during assembly allows.
  • the metallic plug-in contacts can be connected to the respectively assigned, carrier-fixed contacts or contact surfaces are connected in any suitable manner, the creates an electrically conductive, mechanically strong connection, in particular in the manner of a Welded joint, a solder joint and / or a (tool-free and possibly cold producible) Anpreßthetic.
  • the plug contacts are preferably as mutually parallel flat tabs formed in a formed in a housing of the plug-in contact device Plug chamber are arranged. They are preferably in a predetermined Grid with a given distance from each other or a multiple thereof parallel to each other and in series next to each other in the connector chamber.
  • the connections can be made in a very narrow, for example, a 5 mm grid be without short circuits or overheating to be feared.
  • the plug contact device has a mechanical coding, which serves a confusion mating the attached to the carrier Plug contact device with a complementary, on a lead wire ensure the socket provided. This can be a significant potential error switched off during assembly and in case of a possibly necessary repair of the heating unit be because false contacts are excluded.
  • the mechanical coding can For example, parallel to the direction of insertion recesses and / or projections in terms of their number, dimension and / or position relative to the connector chamber are different for different connector devices to be connected.
  • the output from the temperature sensor, electrical temperature signal can display and / or used to control or control the temperature of the heating element.
  • the heating unit has a integrated overload protection, regardless of such evaluation of the Temperature signals protect the heating element from overloading and possibly damage and thus possibly serve as an integrated second security.
  • the overload protection can in particular in the form of at least one weak point in the manner of a fuse be formed, which is arranged in the conductor path between the Schuleiternessen.
  • This can be, for example, a printed resistor, the one has lower electrical resistance than the heating conductor, for example, with only 1% to 2% the Schuleiterwiderstandes and in series in a supply line of the supply voltage located on the carrier.
  • the surface power of the series resistor is in the cold state suitably chosen higher than the area performance of the heating, so that in the case of Improper operation, for example, when dry-running of the heating unit, this resistance destroyed and the heating is switched off.
  • the vulnerability can also be caused by a Conductor narrowing be formed in the course of the heating resistor.
  • the shape of the carrier and the corresponding attachment of the heating resistor and the Temperature sensor can be selected according to the intended application. So For example, for egg cooker, water boiler o. The like. Substantially flat, especially provided round carrier discs. Possibly. a carrier can be attached to at least one Counter a stiffener preferably made by deformation of the carrier Have vibrations, in particular in the form of a bent edge portion. As a result, the carrier can be so far stiffened against externally induced vibration forces be that the attached electrical functional devices, such as the heating conductor and the temperature sensor, no damage caused by vibration.
  • the carrier is designed as a carrier tube, on which, preferably at its Outside, the heating conductor or heating resistor and the at least one temperature sensor are attached. It may in particular be such that in the longitudinal direction of the tube at least one of both sides of a heating zone heated by the heating element (s) Temperature sensor is attached. This allows the temperature of the to be heated, through the tube flowing medium are measured on the inlet side and outlet side. By Evaluation of these temperature signals, for example, determines the flow rate become.
  • heating units it is possible to heat in one simple circular system or in several heating circuits on the insulating support applied.
  • the performance can be as desired on the Power circuits are distributed.
  • the heating conductor or conductors of a heating circuit can thereby be arranged serially or in parallel, wherein preferably a parallel arrangement is selected so that in case of failure of a heat conductor, the heating unit as such remains functional.
  • a suitable choice of the heating circuits can also different Voltage variants are switched.
  • FIG. 1 shows a section of the underside of a electric heating unit 1, which may for example form the bottom of a kettle.
  • the heating unit comprises a circular, flat carrier 2, the upper side 3 a Heating surface forms, which come into direct contact with the liquid medium to be heated can.
  • the carrier has a metallic carrier core 4 in the form of a circular Stainless steel plate made by a molding process with a circumferential, upward directed drawing radius or edge 5 is provided, inter alia, the stiffening of the Support against externally initiated vibration forces is used.
  • an insulating layer 6 is applied by screen printing, which has vitreous and ceramic phases and which was prepared by heat treatment of a corresponding thick-film paste.
  • the firmly adhering to the underside of Bellevillereprs 4 insulating layer has a substantially uniform thickness of about 80 microns and covers the entire flat bottom except for two each substantially rectangular recesses 7, 8, whose size is in each case about 1/2 cm 2 and in the region of which the metallic underside of the carrier core 4 is exposed.
  • the heating resistor or heating conductor 10 forms the current-carrying Heat source of the electric heating unit 1 and is in thick film technology by screen printing and subsequent heat treatment to the insulating layer 6 and the electrical applied insulating support 2.
  • the heating resistor 10 has a plurality, concentric mutually arranged, circular arc-shaped Bankleiterbahnsegmente on, the one heat a heating zone occupying a ring which is not completely closed, which is in radially outward of outer Schwarzwiderstandsbahnsegmenten 12, 13 and inwards is limited by an inner Schuwiderstandsbahnsegment 14.
  • a temperature sensor 20 also in Thick layer method applied to the insulating layer 6 and the carrier 2.
  • a meandering conductor track 21 of electrical resistance material with a strong positive temperature coefficient of the electrical resistance (PTC resistor) is formed and can, for example, in essentially made of platinum.
  • PTC resistor positive temperature coefficient of the electrical resistance
  • the narrow meandering course of the sensor material trace allows it to be on the relatively small, substantially rectangular limited area of the temperature sensor in a small space a very long trace of the Resistor material is housed, so that the resistance of the temperature sensor significantly measurable changes in temperature changes.
  • the two ends of the Conductor 21 are applied over in thick-film technology on the insulating layer 6
  • Connecting webs 22, 23 applied with thick-film technology on the carrier Sensor contact surfaces connected, of which only the sensor contact surface 24 in FIG. 1 is recognizable.
  • insulating layer 25 For electrical insulation to the outside and for protection against mechanical damage and other damage, such as corrosion, is another, in thick-film technology applied insulating layer 25 is provided, with the exception of Edelleitertive vom 19 all current-carrying elements of the resistance heating and, with Exception of the sensor contact surfaces 24, all elements of the current flowing through Temperature sensor and its supply lines to the outside covers.
  • the outer protective layer 25 is applied so that in addition to the contact surfaces 19, 25 and the areas of the recesses 7, 8 remain uncovered, so that in the region of the recess 7, 8 an electrically conductive access to the metallic carrier core 4 remains.
  • a special feature lies in the fact that the Schuleitertive horrin 19 for electrical Connection of the heating resistors to a control unit of the heating unit 1 having Device and the sensor contact surfaces 24 for connection of the temperature sensor 20 at the control unit in a relatively small area connection area 26 with low lateral distance to each other.
  • the connection area lies within the heating conductor-free Zone 16 between the mutually facing circumferential ends of the Edelwiderstandsbahnen and also comprises the two recesses 7, 8, in the region of the stainless steel core 4 of the Carrier can be contacted to ground the stainless steel carrier core.
  • the Connection area a radial length of about 4 cm and a circumferential width of a maximum of about 3 cm. Since in this area all for the electrical connection of the heating unit required contacts are spatially concentrated, the total electrical connection of the Heating unit convenient making all necessary electrical connections in the Connection area 26 done.
  • the heating unit 1 is via a single plug connection completely electrically contactable, the e.g. produced during assembly and At any time, for example, for repair purposes detachable connector all connections for the electrical heating resistor, all connections for the temperature sensor 20 and also Includes connections to ground the heating unit.
  • the carrier-resistant part of the plug connection is formed by a plug-in contact device 30 having a plastic housing 31 in the form one to the connection side open and the carrier by means of a bottom 32 largely closed box has.
  • the perpendicular to the support surface walls of the housing and the bottom include a connector chamber in the plug contacts in the form of Flat tabs 34 to 38 are arranged, which are aligned parallel to each other, perpendicular to the floor 32 protrude outward and in a row with a uniform Grid spacing of example 5 mm are arranged.
  • Another flat plug contact 39 is outside the actual plug chamber within a recess one on the housing attached Stim cover 40 housed.
  • the tabs 34 to 39 are each by the same sized head sections of metallic contact elements formed, which pass through the bottom 32, are firmly anchored in the ground and respectively Foot portions 41 to 44, which are arranged and dimensioned such that the Foot sections in the correct position placing the plug contact device on the carrier in Area of the contact surfaces 19 and 24 or in the region of the recesses 7, 8 lie.
  • the electrical contact between the thick-film contacts 19, 24 for the connection the heating resistors or the temperature sensor and the markable as a male connector Plug contact device can with a welding process, a soldering process and / or done in a Anpreßbacter. Through this contact is simultaneous Also created a mechanical attachment of the plug contact device on the carrier.
  • the foot sections 43, 44 the first or last plug contact the male connector directly are attached to the stainless steel core 4 of the carrier 2.
  • This is on the one hand a grounding of the stainless steel carrier by contacting the associated flat tabs 34 and / or 39 possible.
  • By fixing on opposite sides is also ensures a reliable strain relief for the male connector 30, so that ensured is that even with repeated manufacture and release of the connector or at unfavorable cable management of the connected wiring harness damage in Area of the plug-in contact device 30 is largely excluded.
  • the leading to the thick-film contacts 19, 24 compounds of external mechanical Relieves forces are the leading to the thick-film contacts 19, 24 compounds of external mechanical Relieves forces.
  • a mechanical coding is on the plug contact device 30 which ensures that only one harness or wiring harness is fitted with the correct one, associated socket is connectable.
  • the mechanical coding comprises in the perpendicular to the bottom 32 and the support surface aligned side walls of the housing 31 formed recesses 46 and projections 47, which at different Plug-in devices with respect to number, dimension and / or position relative to the plug-in chamber so can be designed differently, that only the correct socket insertable is. This is a significant potential for errors during assembly and also at a eventual repair of the electric appliance having the heating unit switched off.
  • FIG. 3 the structure of another embodiment of a heating unit 50 will be described explained, in which the carrier 51 in the form of a circumferentially closed tube 52 has, through which the medium to be heated, for example water, in the longitudinal direction 53 through the electric heating unit is running.
  • Fig. 3 shows very schematically a settlement of Outside of such a flow heater.
  • the carrier consists essentially of a stainless steel tube 49, on the outside of an insulating layer 54 in thick film technology was applied. This has two recesses 56, 57 in the connection area 55, in the Area the metallic carrier material is exposed.
  • an electrical heating resistor 58 is applied, whose Schuleiterbahn a meandering course with parallel to the longitudinal direction 53 long and in the circumferential direction short sections is applied and heated a heating zone, which covers most of the Circumference, for example, at a circumferential angle between 300 ° and 340 °, heated.
  • Temperature sensors 59, 60, 61 in Dick harshtechnik applied are also three temperature sensors 59, 60, 61 in Dick harshtechnik applied, which are spaced apart in the flow direction 53. The two are arranged at the axial height of the connection area Temperature sensors 59, 60 in the flow direction before passing through the Schuleiterwindungen 58th certain heating zone, while the third temperature sensor 61 is behind the heating zone. This conductor arrangement can be protected by a further insulating layer on the outside be.
  • a firmly attached to the support plug contact device 65 is analogous to the In connection with Figures 1 and 2 described plug device 30 the electrical Connection of both the three temperature sensors 59, 60, 61, and the heating conductor 58 with a not shown wiring harness, both the supply lines for heating, as well contains the signal lines for the temperature detection.
  • the longitudinal direction of the tube elongated, upstream of the heating resistor 58 in the inlet region of the tube arranged male connector 65 includes nine tabs, of which the Flachstekerfunction 66 for connecting the heating element, the three Flachstekercrue 67 for connecting the Temperature sensor and the FlachsteckWallete 68 of the ground of the wearer is what the Flachsteckzunge 68 forming contact element in the region of the edge recess 56 of the Insulating layer is welded directly to the metallic tube of the flow heater 50. This is in conjunction with a corresponding fixation on the opposite End of the male connector 65 at the same time a zugête mechanical attachment given.
  • a special feature of this formed in tubular heating element is that thanks the plurality of temperature sensors, of which at least one (sensor 59, 60) in Longitudinal direction 53 in front of the heating zone and at least one behind the heating zone, the Temperature of the medium to be heated at the inlet and at the outlet of the heating section is determinable. From these two temperature values, the flow rate can be derived become.
  • the heating unit 50 includes e.g. with the temperature sensors 59 and 61 also an integrated sensor for flow measurement or for determining the flow rate. It is useful if the heat-sensitive conductor materials of Temperature sensors have a distance to the heating conductor, at least the simple Thickness of the carrier material corresponds.
  • a distance is one for the Determining the temperature of the fluid temperature sensor provided at least the Double the substrate thickness. This ensures that the temperature at the place of Sensor is essentially determined by the temperature of the medium to be measured, while the heat generated at the heating element is mainly withdrawn to the medium and practically can not get directly to the temperature sensor.
  • heat-sensitive conductors it is also possible to emerge with the help of one or more heat-sensitive conductors to detect an excess temperature in order to secure the heating element against damage to switch this off via the electronic controller.
  • the heat-sensitive conductor of a temperature sensor provided for this purpose, e.g. of the Sensor 60
  • a smaller distance to the heating conductor has twice the thickness of the Support material.
  • fast response times can be ensured.
  • the heat-sensitive conductor can thereby e.g. also arranged below or above the heating conductor and be electrically insulated from it by an insulator layer.
  • the heating unit 50 is one of the regulation of the Heating device independent overload protection or overtemperature protection has.
  • a printed fuse resistor 69 is provided in series in the supply of the Supply voltage for the heating conductor 58 is connected and thus from the supply current is flowed through.
  • the material of the fuse resistor 69 has a higher positive Temperature coefficient than the material of the heat conductor, so that its resistance increases with increasing Temperature rises more than that of the heat conductor.
  • the area performance of the Series resistor 69 is preferably selected higher than the cold state Area power of the heating conductor.
  • improper use of the heating unit For example, when dry, so when operating without heat loss, this is Resistor destroyed and the supply line between terminal 65 and heating resistor 58 interrupted.
  • Such working in the manner of a fuse Weak point can of course also in embodiments of the in Figs. 1 and 2 be provided kind shown.

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  • Control Of Resistance Heating (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Resistance Heating (AREA)

Claims (12)

  1. Unité de chauffage électrique, notamment pour des substances liquides, avec un support (2 ; 51), sur lequel sont fixés, pour constituer au moins une zone de chauffe, au moins une résistance de chauffage électrique (10 ; 58) appliquée par une technique des conducteurs plats, notamment par une technique des couche épaisses, ainsi qu'au moins un capteur de température (20 ; 59 ; 60 ; 61) correspondant à la zone de chauffe et réalisé pour émettre des signaux électriques concernant la température, sachant que pour le branchement électrique de la résistance chauffante, on attribue au support des contacts de conducteur chauffant (19) et, pour le branchement électrique du capteur de température, des contacts de capteur (24) et sachant que les contacts de conducteur chauffant et les contacts de capteur sont rassemblés spatialement de manière tellement étroite dans un domaine de branchement (26 ;55), que leur contact peut être établi de manière conjointe par un moyen de branchement (30 ; 65), caractérisée en ce que le support (2 ; 51) présente un noyau de support (4 ; 49) en métal, sur lequel est appliquée au moins une couche d'isolation électrique (6 ; 54), pour porter la résistance chauffante (10 ; 58) et éventuellement aussi le capteur de température (20 ; 59 ; 60 ; 61).
  2. Unité de chauffage d'après la revendication 1, caractérisé en ce qu'au moins un capteur de température (20 ; 59 ; 60 ; 61) est appliqué sur le support (2 ; 51) par une technique des conducteurs plats, notamment par une techniques des couches épaisses, le capteur de température étant de préférence une résistance de mesure.
  3. Unité de chauffage d'après la revendication 1 ou 2, caractérisé en ce que le noyau de support (4 ; 49) métallique se présente sous forme de plaque.
  4. Unité de chauffage d'après une des revendications précédentes, caractérisé en ce qu'on prévoit dans le domaine de branchement (26 ; 55), à proximité des contacts de conducteur chauffant (19) et des contacts de capteur (24), au moins un contact à la terre (7 ; 8 ; 56) pour la mise à la terre du moyen de chauffage.
  5. Unité de chauffage d'après une des revendications précédentes, caractérisé en ce qu'on prévoit un dispositif de contact à fiches (30 ; 65) fixé au support (2 ; 51), qui présente des contacts à fiches (de 34 à 39 ; de 66 à 68), qui sont raccordés de manière électriquement conductible à des contacts de conducteur chauffant (19) et à des contacts de capteur (24) respectivement correspondants et éventuellement à un contact de mise à la terre (7 ; 8 ; 56).
  6. Unité de chauffage d'après la revendication 5, caractérisé en ce que pour produire des raccords mécaniquement solides et électriquement conductibles, le dispositif de contact à fiches (30 ; 65) est fixé par soudage, brasage et/ou par un raccord à serrage à des contacts (19 ; 24 ; 7 ; 8) attachés au support, le dispositif de contact à fiches (30 ; 65) étant de préférence soudé au moins dans un endroit, de préférence à deux endroits opposés, à un noyau métallique de support (4 ; 49) du support.
  7. Unité de chauffage d'après une des revendications précédentes, caractérisé en ce que pour former un coupe-circuit de température on dispose au moins un capteur de température (60) à une telle proximité de la résistance chauffante (58) qu'en absence d'une substance à chauffer, on obtient une conduction thermique rapide entre la résistance chauffante et le capteur de température, sachant qu'un écart entre la résistance chauffante (58) et le capteur de température (60) est de préférence inférieure au double de l'écart entre le conducteur chauffant et la substance à chauffer et notamment inférieure à la valeur double de l'épaisseur du matériau de support.
  8. Unité de chauffage d'après une des revendications précédentes, caractérisé en ce que, pour former un moyen de chauffage pouvant être traversé par un écoulement de substance à chauffer, le support (51) est réalisé en tant que tuyau de support, la résistance chauffante (58) et/ou le capteur de température (59 ; 60 ; 61) étant appliqués de préférence à la face extérieure du tuyau de support.
  9. Unité de chauffage d'après la revendication 8, caractérisé en ce qu'en direction longitudinale (53) du tuyau de support on dispose au moins un capteur de température (59 ; 61) devant la zone de chauffage occupée par la résistance chauffante (58) et au moins un capteur de température (61) derrière la zone de chauffage.
  10. Unité de chauffage d'après la revendication 8 ou 9, caractérisé en ce qu'elle présente un capteur intégré pour déterminer le débit de passage de la substance à travers le tuyau de support, le capteur comprenant au moins un capteur de température (59) appliqué devant une zone de chauffage en direction de passage de l'écoulement (53) et au moins un capteur de température (61) derrière une zone de chauffage en direction de passage de l'écoulement, les capteurs de température (59, 61) du capteur de débit de passage présentant notamment un écart par rapport au conducteur chauffant (58), qui correspond au moins à l'épaisseur du matériau de support.
  11. Unité de chauffage d'après une des revendications précédentes, caractérisé en ce que pour déterminer la température de la substance chauffée on prévoit au moins un capteur de température, dont la distance d'un conducteur de chauffage comporte plus que le double de l'épaisseur du matériau de support.
  12. Unité de chauffage d'après une des revendications précédentes, caractérisé en ce que pour obtenir un bon couplage thermique entre la résistance chauffante et le capteur de température, au moins un capteur de température produit de préférence par une technique des conducteurs plats est disposé au-dessus ou au-dessous d'un conducteur de chauffage produit par une technique des conducteurs plats, et est électriquement isolé de celui-ci par une couche isolante.
EP01110424.7A 2000-05-03 2001-04-27 Unité de chauffage électrique, particulièrement destiné à des milieux liquides Expired - Lifetime EP1152639B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10021512 2000-05-03
DE10021512A DE10021512A1 (de) 2000-05-03 2000-05-03 Elektrische Heizeinheit, insbesondere für flüssige Medien

Publications (4)

Publication Number Publication Date
EP1152639A2 EP1152639A2 (fr) 2001-11-07
EP1152639A3 EP1152639A3 (fr) 2004-07-21
EP1152639B1 true EP1152639B1 (fr) 2005-11-30
EP1152639B2 EP1152639B2 (fr) 2015-10-21

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EP01110424.7A Expired - Lifetime EP1152639B2 (fr) 2000-05-03 2001-04-27 Unité de chauffage électrique, particulièrement destiné à des milieux liquides

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AT (1) ATE311734T1 (fr)
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DE102012213385A1 (de) 2012-07-30 2014-05-22 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung und Elektrogerät mit Heizeinrichtung
CN103904451A (zh) * 2012-12-05 2014-07-02 E.G.O.电气设备制造股份有限公司 插头连接器和具有这种插头连接器的装置

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DE10356790A1 (de) 2003-12-04 2005-07-07 BSH Bosch und Siemens Hausgeräte GmbH Heizvorrichtung für Fluide, Durchlauferhitzer und Verfahren zu deren Herstellung
DE10356788A1 (de) * 2003-12-04 2005-07-07 BSH Bosch und Siemens Hausgeräte GmbH Sicherungsvorrichtung für eine Heizvorrichtung, Heizvorrichtung und Durchlauferhitzer
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US8978450B2 (en) 2010-07-22 2015-03-17 Watlow Electric Manufacturing Company Combination fluid sensor system
DE102012215746A1 (de) 2012-09-05 2014-01-16 E.G.O. Elektro-Gerätebau GmbH Lanze für einen Hochdruckreiniger und Hochdruckreiniger
DE102013202346B3 (de) * 2013-02-13 2014-05-28 E.G.O. Elektro-Gerätebau GmbH Impellerpumpe
CN103808000B (zh) * 2014-02-27 2016-05-18 常州瑞择微电子科技有限公司 厚膜加热器
ES2564760B1 (es) * 2014-09-24 2017-01-04 BSH Electrodomésticos España S.A. Dispositivo de aparato doméstico y procedimiento para la fabricación de un dispositivo de aparato doméstico
DE102015207253A1 (de) 2015-04-21 2016-10-27 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung zum Erhitzen von Flüssigkeiten, Verdampfer für ein Elektrogargerät und Verfahren zum Betrieb einer Heizeinrichtung
DE102015218121A1 (de) 2015-09-21 2017-03-23 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung zum Erhitzen von Wasser und Verfahren zum Betrieb einer solchen Heizeinrichtung
PL3145273T3 (pl) 2015-09-21 2020-03-31 E.G.O. Elektro-Gerätebau GmbH Urządzenie grzewcze do ogrzewania wody i sposób działania takiego urządzenia grzewczego
DE102015223493A1 (de) 2015-11-26 2017-06-01 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung
EP3260796B1 (fr) 2016-06-20 2020-05-06 Bleckmann GmbH & Co. KG Composant de système de chauffage fournissant une conception de capteur de température compact
DE102018100635A1 (de) * 2018-01-12 2019-07-18 Webasto SE Wärmetauscher und Verfahren zum Herstellen eines solchen Wärmetauschers
DE102018213869B4 (de) 2018-08-17 2020-03-05 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung und Verfahren zum Betrieb einer Heizeinrichtung
US11044789B2 (en) * 2018-10-11 2021-06-22 Goodrich Corporation Three dimensionally printed heated positive temperature coefficient tubes
DE102020206113A1 (de) 2020-05-14 2021-11-18 G. Maier Elektrotechnik GmbH Sitz- oder Liegemöbel für den Außenbereich und Anordnung
EP4009741A1 (fr) * 2020-12-03 2022-06-08 Bleckmann GmbH & Co. KG Composant de système de chauffage permettant de détecter une première et une seconde températures
CN113198558A (zh) * 2021-04-30 2021-08-03 深圳市锦瑞生物科技有限公司 一种预热装置
EP4116120A1 (fr) * 2021-07-08 2023-01-11 MAHLE International GmbH Dispositif de chauffage électrique, en particulier pour un véhicule électrique

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Publication number Priority date Publication date Assignee Title
DE102012213385A1 (de) 2012-07-30 2014-05-22 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung und Elektrogerät mit Heizeinrichtung
CN103904451A (zh) * 2012-12-05 2014-07-02 E.G.O.电气设备制造股份有限公司 插头连接器和具有这种插头连接器的装置
CN103904451B (zh) * 2012-12-05 2018-02-16 E.G.O.电气设备制造股份有限公司 插头连接器和具有这种插头连接器的装置

Also Published As

Publication number Publication date
DE50108215D1 (de) 2006-01-05
ES2254283T5 (es) 2016-02-05
EP1152639A2 (fr) 2001-11-07
ATE311734T1 (de) 2005-12-15
DE10021512A1 (de) 2001-11-08
EP1152639B2 (fr) 2015-10-21
ES2254283T3 (es) 2006-06-16
EP1152639A3 (fr) 2004-07-21

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